<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model.trim="name" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model.trim.number="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="from">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="tj">添加/修改</button>
      <button @click="xg">修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item, index) in list" :key="item.id">
          <td>{{ item.id }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.sex }}</td>
          <td>
            <button @click="sc(index)">删除</button>
            <button @click="bj(index)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      name: "",
      age: "",
      from: "",
      myindex: "",
      // list: JSON.parse(localStorage.getItem("data")) || [],
      list: [{ id: 1, name: "wss", age: 18, sex: "男" }],
    };
  },
  methods: {
    tj() {
      if (this.name.length == 0 || this.age.length == 0) {
        alert("内容不能为空");
        return;
      }

      this.list.push({
        id: this.list[this.list.length - 1].id + 1,
        name: this.name,
        age: this.age,
        sex: this.from,
      });
      this.name = "";
      this.age = "";
    },
    sc(index) {
      this.list.splice(index, 1);
    },
    bj(index) {
      console.log(index);
      this.name = this.list[index].name;
      this.age = this.list[index].age;
      this.from = this.list[index].sex;
      this.myindex = index;
    },
    xg() {
      this.$set(this.list, this.myindex, {
        id: this.myindex + 1,
        name: this.name,
        age: this.age,
        sex: this.from,
      });
    },
  },
};
</script>

<style>
</style>